/* color palette from <https://github.com/vuejs/theme> */
:root {
  --vt-c-white: #ffffff;
  --vt-c-white-soft: #f8f8f8;
  --vt-c-white-mute: #f2f2f2;

  --vt-c-black: #181818;
  --vt-c-black-soft: #222222;
  --vt-c-black-mute: #282828;

  --vt-c-indigo: #2c3e50;

  --vt-c-divider-light-1: rgba(23, 219, 82, 0.848);
  --vt-c-divider-light-2: rgba(226, 32, 32, 0.943);
  --vt-c-divider-dark-1: rgba(84, 84, 84, 0.65);
  --vt-c-divider-dark-2: rgba(84, 84, 84, 0.48);

  --vt-c-text-light-1: var(--vt-c-indigo);
  --vt-c-text-light-2: rgba(60, 60, 60, 0.66);
  --vt-c-text-dark-1: var(--vt-c-white);
  --vt-c-text-dark-2: rgba(235, 235, 235, 0.64);
}

/* semantic color variables for this project */
:root {
  --color-background: var(--vt-c-white);
  --color-background-soft: var(--vt-c-white-soft);
  --color-background-mute: var(--vt-c-white-mute);

  --color-border: var(--vt-c-divider-light-1);
  --color-border2: var(--vt-c-divider-light-2);
  --color-border-hover: var(--vt-c-divider-light-1);

  --color-heading: var(--vt-c-text-light-1);
  --color-text: var(--vt-c-text-light-1);

  --section-gap: 160px;
}

html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
  margin: 0;
  padding: 0;
}
button {
  outline: none;
  border: none;
  cursor: pointer;
}
/* HTML5 display-role reset for older browsers */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  display: block;
}
body {
  font:
    14px / 1.5 Helvetica Neue,
    Helvetica,
    Arial,
    Microsoft Yahei,
    Hiragino Sans GB,
    Heiti SC,
    sans-serif;
  color: #333;
  background-color: #fff;
}
img {
  vertical-align: middle;
}
ol,
ul {
  list-style: none;
}
blockquote,
q {
  quotes: none;
}
blockquote:before,
blockquote:after,
q:before,
q:after {
  content: '';
  content: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

a {
  text-decoration: none;
  color: #333;
}

a:link,
a:visited {
  color: #333;
}

a:hover,
a:active {
  color: #ff6700;
}

/* 预置class */
.cf::after {
  content: '';
  display: block;
  clear: both;
}

.fl {
  float: left;
}

.fr {
  float: right;
}

.border-box {
  box-sizing: border-box;
}

.container {
  width: 1200px;
  min-width: 1200px;
  margin: 0 auto;
}

.shadow1 {
  -webkit-box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}
.shadow2 {
  -webkit-box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.ul-fl li {
  float: left;
}

.m-r10 {
  margin-right: 10px;
}
.m-l10 {
  margin-left: 10px;
}

.m-t10 {
  margin-top: 10px;
}

.m-b10 {
  margin-bottom: 10px;
}

.m-x-auto {
  margin: 0 auto;
}
